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General| Brand | Siemens |
|---|---|
| Model | ETU776 |
| Category | Circuit breakers |
| Language | English |
Provides general notices, hazard warnings (DANGER/GEFAHR), and essential safety precautions.
Explains symbols used throughout the documentation.
Detailed view and design elements of the ETU755 trip unit.
Important safety warnings and cautions for operating the ETU755 trip unit.
Cautionary advice for adjusting overcurrent protection settings.
Lists available protective functions for overcurrent protection.
Characteristics for overload protection (L-tripping).
Characteristics for short-time delay short-circuit tripping.
Characteristics for instantaneous short-circuit tripping.
Characteristics for ground-fault tripping.
Detailed view and design elements of the ETU776 trip unit.
Important safety warnings and cautions for operating the ETU776 trip unit.
Cautionary advice for adjusting ETU776 overcurrent protection settings.
Lists protective functions for ETU776 overcurrent protection.
Characteristics applicable to ETU776 overcurrent protection.
Displays for trip unit activation, overcurrent alarm, and communication status.
Indicates if an extended protective function has tripped.
Shows which protective function has tripped and its cause.
Explains the meaning of T.U. ERROR LED flashes or permanent light.
Details on basic protective functions ensuring operation without auxiliary voltage.
Settings and characteristics for overload protection (L-tripping).
Details on short-time delay short-circuit protection (S-tripping).
Details on instantaneous short-circuit protection (I-tripping).
Details on ground-fault protection (G-tripping).
Settings and cautions for neutral conductor overload protection.
Functionality for monitoring and signaling load changes.
Provides a pre-trip warning signal for overload conditions.
Protection against phase loss, with automatic setting adjustment.
Ability to continue thermal process simulation without external power.
Enables precise localization of short-circuits in multi-level systems.
Improves overload protection selectivity with fuses using I⁴t characteristic.
Option to disable overload protection, e.g., for generator supply.
Allows switching to I²t characteristic for better selectivity with downstream fuses.
Allows storing and switching between two parameter sets.
Enables I²t characteristic for improved ground-fault protection selectivity.
Lists parameters and their corresponding units and changed data.
Explains button actions when viewing parameter changes.
Description of the fixed-mounted graphical display and its capabilities.
Breakdown of the display's components like menu title, lines, and status.
Indicates operator actions and active settings via bold symbols.
Displays measured values numerically and graphically as bar diagrams.
Shows operational screen with currents, including background dimming.
Procedure for polling and accessing the main menu.
How to use operating keys to navigate through the menu structure.
How to select a menu item using the operating keys.
How to display current measurements, including min/max values.
How to display frequency measurements, including THD and UTHD.
How to display harmonic content of voltage and current.
How to display active, reactive, and apparent power, and average power.
How to view configured protection parameters for different trip types.
Accessing maintenance logs like total operations and trip counts.
How to configure the display of trip event curves.
Configuration options for Trigger A event settings.
Process for choosing events to display as characteristics.
How to view waveform data for selected events.
Accessing and displaying event details.
How to view recorded characteristic curves.
Various ways to display waveform data.
How to set specific protection parameters.
Procedure for entering or changing the password.
Confirming whether to save parameter changes.
Process for entering a new password.
How to display trip unit identification details.
Procedure for resetting maximum and minimum measured values.
How to display current measurements in English.
How to display frequency measurements in English.
How to display harmonic content in English.
How to display power measurements in English.
How to view protection parameters in English.
Accessing maintenance logs in English.
How to configure characteristic display in English.
Configuration options for Trigger A in English.
Process for choosing events to display in English.
How to view waveform data in English.
Accessing and displaying event details in English.
How to view recorded characteristic curves in English.
Various ways to display waveform data in English.
How to set protection parameters in English.
Procedure for entering or changing the password in English.
Confirming parameter changes in English.
Process for entering a new password in English.
How to display trip unit identification in English.
Procedure for resetting maximum and minimum measured values in English.
Explains the role of the rating plug and errors related to its use.
Lists order numbers for rating plugs based on frame size.
Instructions for installing and removing ground-fault protection modules.
Details on different ground-fault protection module versions and their capabilities.
How alarm/trip signals are transmitted and module programmability.
Configuration for ground fault protection, including detection methods.
Steps for removing a dummy module.
Instructions for installing and latching the ground-fault protection module.
Steps for installing the ground fault module, including connection and testing.
Lists order numbers for ground-fault protection modules.
Safety precautions and steps for replacing the trip unit.
Step-by-step guide for removing the trip unit.
Instructions for disconnecting electrical connectors.
Instructions for installing the trip unit in reverse order.
Guidance on ordering trip unit systems and updating type labels.
Prerequisites for the self-test and how to interrupt it.
Interpretation of the running light sequence and test outcomes.
Conditions for performing self-test with tripping and interruption methods.
Interpretation of running light and test results for self-test with tripping.
Procedures for re-closing a circuit breaker after a trip.
Steps for applying the sealing and locking device.
Notice regarding the length of the sealing wire.
Order numbers for sealing devices for ETU755 and ETU776.
